The array of bottles is impressive, their contents finely tuned to varied tastes. But they all share the same roots in Mesoamerica's natural bounty and human culture. The drink is tequila--more properly, mescal de tequila, the first mescal to be codified and recognized by its geographic origin and the only one known internationally by that name. In Tequila A Natural and Cultural History, Ana G. Valenzuela-Zapata,...